In daily life, many people

 

who use silicone rubber products find that the silicone rubber products will turn white after being used for a period of time. The specific manifestation is that a layer of white and greasy powdery substance appears on the surface, just like being covered with white ash. It not only affects the appearance of the product, but also affects the quality of the product, and makes users have serious doubts about the quality of the product and dare not Use often leads to returns. The processing of returns is a very time-consuming and labor-intensive task. Many manufacturers adopt various methods such as high-temperature secondary vulcanization and solvent scrubbing, but it is still difficult to achieve good results and may cause some side effects. Therefore, the best way is to first analyze the mechanism of whitening on the surface of silicone rubber, prescribe the right medicine to solve the problem at the source.

Why do silicone products boil white?
1. Improper adjustment of mixed silicone rubber raw materials.
2. Silicone products vulcanization temperature is too high, resulting in polymer degradation spray.
3. Silicone products vulcanization temperature is too low, the local place is not vulcanized complete, resulting in white spray frost.
4. Mixing silicone rubber rubber when the temperature is too high.
5. Seasons change.